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Finding the Fourth Proportional to 16,728, 25,093.68 and 4,416

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Solution

The fourth proportional to 16,728, 25,093.68 and 4,416 is: 6,624.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,728 : 25,093.68 = 4,416 : x
  2. Step 2: Convert to fraction form
    16,728/25,093.68 = 4,416/x
  3. Step 3: Cross multiply
    16,728x = 25,093.68 × 4,416
  4. Step 4: Simplify right side
    16,728x = 110,813,690.88
  5. Step 5: Solve for x
    x = 110,813,690.88/16,728
  6. Step 6: Final answer
    x = 6,624.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.